
Hello, Most probably the issue is that some parts are not assigned as helix, so they are shown in the "coil" (non-helix, non-strand) ribbon style. In that case, it is because the backbone conformations of the two structures are slightly different and the H-bonding pattern is less ideal in some part, causing identification of that part as coil instead of helix. However, you can manually assign the residues as helix regardless of their conformation, if you really want to do that. In the assignment command, you would need to specify those residues by their residue number (and probably also chain ID and model number, if there are multiple chains and/or multiple models), for example: setattr #2/B:10-20 residues is_helix true see "setattr" help <https://rbvi.ucsf.edu/chimerax/docs/user/commands/setattr.html> You may also need to assign the attribute "ss_id" if you are still seeing short coil segments in the middle of where you want helix, as explained in this previous post: <https://mail.cgl.ucsf.edu/mailman/archives/list/chimerax-users@cgl.ucsf.edu/...> I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Resource for Biocomputing, Visualization, and Informatics Department of Pharmaceutical Chemistry University of California, San Francisco
On Apr 16, 2024, at 10:50 PM, Zhang, Miao via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
Dear Elaine We made figures using ChimeraX of the same protein. One structure with small molecule bound, one without. The cartoon style of the same region is shown differently in these two structures. How can we make them more consistent with each other? The cartoon style width is the same. <image001.png>
<image002.png>